Oar.



A. SANBORN.

OAR.

APPLICATION FILED SPT.22. 1915.

Patented Apr. 23, 1918. v

Flat].

INVENTOR WITNESSES ATTORNEY lih menu, or LEETE rsr.

specification of Letters Patent.

Patented Apr. 3, Ti.

application filed fieptember 22, 1916. Serial Ito. 121,621.

To all whom it may concern:

Be it known that I, ARTHUR SANBORN, a citizen of the United States, residing at Leete Island, in the county of' New Haven and State of Connecticut, have invented certain new and useful Improvements in Oars, of which the following is a specification.

The present invention relates generally to oars, and more particularly has reference to a sectional oar.

It is one of the principal aims and objects of this invention to provide an oar formed into sections so that when not in use, it can be collapsed and arranged in a compact form so as to occupy a minimum amount of space, such oars being particularly desirable for use in connection with a motor boat when the motor has become stalled.

As an equally important object, the invention resides in the provision of an improved coupling sleeve carried by one of the sections and arranged to receive and hold the other section in extended position,

novel means being also provided for removablg fastening the sleeve in position.

more specific improvement of the invention embraces a screw threaded stud formed by reducing one of the sections, said stud'being accommodated in a corresponding socket in the other section to increase the eficiency of the engagement of the sections when in an extended position.

Among the other aims and objects of this invention may be recited the provision of a device of the character mentioned with a view to compactness, the number of parts of which are few, the construction simple, fihe 1hpost of production low, and the efiiciency In the more detailed description of the invention, which is to follow, reference is made to the accompanying drawings, but it will be understood that only one form of the invention is illustrated therein, and various changes and modifications can be made without departing from the spirit or scope of the invention, as defined in the claims.

The invention is clearly illustrated in the accompanying drawings, in which Figure 1 is a front elevation of my invention;

Fig. 2 is an enlarged longitudinal sectional detail of the connection between the sections of the ear.

Similar characters of reference are em ployed in all of the above described views, to indicate corresponding parts.

eferrlng now, more particularly, to the accompanymg drawings, I provide an oar comprismg a blade section 1, and a handle section 2. The blade section is reduced to provlde a shoulder 3 while the reduced portlon thus provided is gradually enlarged toward its outer end as indicated by the numeral 4. A screw threaded stud 5 pro- ]ects centrally and longitudinally from the reduced end 4 of the handle section 1, being preferably formed integral therewith for a purpose to be described.

In order to detachably connect the sections 1 and 2, I provide a frusto-conica'l sleeve 6, which is arranged in close relation w th the reduced end 4 and abutting relation with the shoulder 3. It is to be noted that because of the formation of the sleeve 6 and the reduced end 4, and because of the engagement of these parts the sleeve is efiectively anchored on the section 1. The sleeve extends longitudinally from the section and encompasses the stud 5, being arranged to engage the reduced end 7 of the section 2 as illustrated to advantage in the accompanying drawings.

For the purpose of facilitating the removable engagement of the sections 1 and 2 and at the same time to increase the rigidity of the oar, I have provided the reduced end of the section 2 with a screw threaded socket 8 to coiiperate with the screw threaded stud 5 when the sections are being assembled.

This connecting means permits of a quiet and easy method of detaching and separating the sections, and also of putting them together. When assembled the oar is strong and serviceable. If desired, the sleeve may be secured at its free end to the handle section 2 by suitable fastening means, such as the screws 9. When the screws are employed for securing, the sleeve 6 is then provided with suitable holes 10 through which said screws pass to enter the section 2.

In view of the foregoing detailed description, it is thought that a description of the operation of the invention is unnecessary. However, at this point, it is desired that particular emphasis be laid upon the arrangement of the sleeve carried by one section for receiving the other section and having the fastening means for removably holding the sections in an extended formation. Incidentally attention is directed to the stud and the receiving socket which increases the durability and strength of the device when m use.

While I have illustrated and described a preferred embodiment of the invention, I am aware that many modifications may be made therein by any person skilled in the art, without departmg from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details shown; but,

What I claim is 1. An oar comprising a blade section and a handle section, a screw threaded stud extending longitudinally from the bladesection, .a coup i ter section and inclosing the stud, said handle section being removably receivable within the sleeve and provided with a socket. for accommodating the stud, and means for reng sleeve anchored on said lat-' 4 1,aes,ese

movably fastening the sleeve to the handle section.

2. An oar comprising a blade. section and a handle section, said blade section being provided at one end with a projecting screw threaded stud and a sleeve, said handle section being provided with a reduced end forming a shoulder, and a threaded socket in said latter section to coiiperate with the stud so that when the sections are assembled, the screwing of the stud and socket together serves to bring the ends of the two sections into contact whereupon the. end of the sleeve is caused to abut the shoulder on the handle section.

In testimony whereof I afiix my signature in presence of two witnesses.

ARTHUR SANBORN.

Witnesses:

GEORGE E. SANBonN, CALVIN M. Lama. 

